Motor for piano-players.



E. T. TURNEY..'

MOTOR FOB. PIANO PLAYERS.

APPLICATION FILED NOV. 13, 1909.

1,028,307, Patented June 4, 1912.

' 4 SHEETS-QKEET 1.

COLUMBIA PLANDGRAPH co.,\v,\smNG'r0N. n. c.

E. T. TURNBY, MOTOR FOE PIANO PLAYERS.

I APPLICATION FILED NOV 13, 19091 1,028,307.

4 SHEETS-SHEET 2.

Patented June 4, 1912.

E. T. TURNEY.

MOTOR FOR PIANO PLAYERS.

APPLICATION FILED NOV. 13; 1909.

1,028,307, V Patented June 4, 191-2.

4 SHEETS-SHEET 3.

, Ill] n I Q U E. T.-TURNEY MOTOR FOR PIANO PLAYERS.

APPLIOATION FILED NOV. 13, 1909.

I 1,028,307, Patented June4, 1912.

4 SHEETS-SHEET 4.

COLUMBIA PLANOGRAPH c0., WASHINGTON, n. C.

,FFTQ.

EUGENE T. TURNEY, o nAvENroiar, IOWA, assreivoa TO AMERICAN PNEUMATICACTION COMPANY, or DAVENPORT, IOWA, A CORPORATION or WEST VIRGINIA.

MOTOR FOR PIANO-PLAYERS.

Specification of Letters Patent.

Patented June 4:, 1912.

To all whom it may concern:

Be it known that I, EUGENE T. TURNEY, a citizen of the United States,residing at Davenport, in the county of Scott and State of Iowa, haveinvented a new and useful Motor for Piano-Players, of which thefollowing is a specification.

My invention relates to improvements in motor for piano players, whichshall be driven by atmospheric pressure in connection with the partialvacuum used in such mechanisms for operating the keys of the piano.

The objects of my improvement are the production of a simple motormechanism in which the parts are readily accessible for adjustment,repair and replacement. I attain these objects by the mechanismillustrated in the accompanying drawings, in which,

Figure 1 is an elevation of my improvement; Fig. 2 is a transversesection upon the line, 11, of Fig. 1; Fig. 3 is a transverse section onthe line 22, of Fig. 1; Fig. 4 is a transverse section on the line 33 ofFig. 1; Fig. 5 is a transverse section on the line 44, Fig. 1; Fig. 6 isa Vertical, longitudinal section, through one of the bellows units; andFig. 7 is a section on line 5 5, of Fig. 4.

Similar reference numerals refer to similar parts, throughout theseveral views.

The reference numeral, 1, designates a casing, which extendstransversely across the bottom of my entire motor. In this casing I haveprovided a compartment, 2, which connects with the vacuum-producingmechanism, and in which is maintained at all times a partial vacuum.Directly below and channel, 7, is a rod, 8, upon which is pivoted ablock, 9, similar in shape and size to the block, 6, and having thereina channel, 10, which comes directly above the channel, 7. The rod, 8,and block, 9, are so proportioned and disposed that there is some spacebetween the block 9, and the block 6.

In this space I have provided the folding flexible connection, 11, whichis similar to an ordinary bellows, and which connects blocks 6 and 9,and the channels, 7 and 10, and at the same time permits the blocks 9,to swing upon the rod, 8.

Mounted upon the block, 9, is the bellowsboard or base, 12, and in thebellows-board or base, 12, is provided the rod, 13, which extendsupwardly from the central portlon thereof. I provide anotherbellows-block, 14, extending outwardly from the center of which is arod, 15, in the center of which is provided a tubular chamber, 16, intowhich the rod, 13, upon the bellows-base, 12, extends. This constructionsecures the parallelism of the bellows-block, 1 1, with thebellows-base, 12. The usual flexible bellowsfolds, 17 connect thebellows-base, 12, with the bellows-block, 1 1. In the bellows-base, 12,are provided apertures, 18, clearly shown in Fig. 6, which establish aconnection between the bellows-folds, 17, and the channel, 10. The topof the rod, 15, is connected to a crank-pin, 19, which forms a portionof a crank-shaft, 20.

It will now be seen that when air is exhausted from the bellows-folds,17, the atmospheric pressure will cause the collapsing of thebellows-folds and the depression of the bellows-block 14:, therebycarrying down the rod, 15, and causing the rotation of the crank-shaft,20, through the pin, 19. The pivotal mounting of the block 9, upon therod, 8, will permit the entire bellows to swing transversely, as thecrank-shaft, 20, is rotated.

In order to secure exhaustion of the air from the bellows-folds, 17, atthe proper times, I have provided the following mechanism: Ahorizontally-disposed valve-port, 21, is located between thecompartment, 2, and the compartment, 3, and a valve, 22, is located inthe compartment, 8, for the closing of said valve-port, 21. The valve,22, is provided with a valve-stem, 23, which extends from near thebottom of the compartment, 3, upwardly through the compartment, 2, abovethe casing, 1, to a point inside of the bellows-base, 12. A coiledspring, 24, is located upon the valve-stem, 23, and below the valve, 22,to yieldingly close the valve against the valve-port 21. In thebellows-base, 12, about the upper end of the valve-stem, 23, is providedan aperture, 25, leading from the outside air into thebellows-folds,.17. Upon the upper end of the valve-stem, 23, is provideda nut, 26, above which, and about the valve-stem, is a bit of felt orother flexible material, 27, and resting upon this felt, 27, is a valve,28, which is proportioned to close the aperture, 25, in thebellows-base, 12, when the bellows-base, 12, contacts therewith. Anotherpiece of felt or flexible material, 29, is 10- catcd above the valve,28, and a nut, 30, is screwed upon the top of the valve-stem, 23, tokeep the mechanism in position. The object of mounting the valve 28,between the flexible washers 27 and 29, is to permit the valve to flexand follow or accommodate itself to the changing inclination of thebottom of the bellows.

Inside of the compartment, 2, and about the valve-port, 21, is aguide-plate, 31, through which the valve-stem, 23, extends, and by whichit is guided.

As will be seen by reference to Fig. 1, I have provided four sets ofbellows mechanism, as above described, attached at various angles to thecrankshaft, 20, so that there will be at least one bellows in a positionto pull when a vacuum is produced in the compartment, 2.

The operation of my motor is as follows: When the crank-shaft is in aposit-ion shown in Fig. 5, the bellows-base, 12, is horizontal, and thevalve, 28, is so disposed upon the valve-stem, 23, that in this positionthe valve closes the aperture, 25. Immediately upon the crank-shaftpassing the center, in the direction to assume such a position as isshown in Fig. t, the bellows is inclined upon its pivotal connectionwith the rod, 8, in the direction of the valve-stem, 23. Thisinclination serves to force downwardly the valvestem, 23, and therebydepress the valve, 22, off the valve-port, 21. This establishes aconnection between the chamber, 2, in which a vacuum is maintained, andthe bellows-folds, 17, through the channels, 5, 7, and 10, therebyexhausting the air from the bellows and causing it to be collapsed bythe atmospheric pressure. Fig. 3 shows the bellows at the end of thepowerstroke, when it is fully collapsed. In this position thebellows-base, 12, will again be horizontal, and as soon as it passes thecenter to such a position as is shown in Fig. 2, it will be tilted inthe opposite direction, or away from the valve-stem, 23. This willpermit the spring, 2 1-, to close the valve, 22, upon the valve-port,21, and thereby disconnect the vacuum chamber, 2, from thebellows-folds, 17, and will at the same time raise the bottom of thebase, 12, from the valve, 28, and permit the air from the outsideatmosphere to enter the bellows-folds, 17, through the aperture, 25.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is

1. In a motor in combination, a crank shaft, a bellows connected withsaid crank shaft and mounted to oscillate with the revolution thereof,and means for admitting air to and exhausting it from said bellowsactuated by the oscillations thereof.

2. In a motor in combination, a crank shaft, a bellows having the basethereof pivoted, and the head connected with said crank shaft, saidbellows having inlet and exhaust ports and valve mechanism for controlling said ports operated by the swing of said bellows upon itspivot.

3. In a motor in combination, a crank shaft, a bellows having the basethereof pivoted and the head connected with said crank shaft, the baseof said bellows having a port located to one side of the pivot, and avalve located outside of said bellows so as to contact with said baseand cover said port as said bellows is moved toward said valve by itsoscillation.

4. In a motor, in combination a crank shaft, a pivoted bellows attachedto said shaft and oscillated thereby, said bellows having an inlet portand an independently mounted valve located in the path of oscillation ofsaid inlet port so as to cover and close the same during a portion ofits oscillatory movement.

5. In a motor, in combination an oscillating bellows, a crank shaftattached thereto and driven thereby, said bellows having an inlet portand a flexibly mounted valve located in the path of oscillation of saidport so as to be opened and closed by the oscillation of the bellows.

6. In a motor in combination, an oscillating bellows, a crank-shaftattached thereto and driven thereby, said bellows lnving inlet andoutlet ports, and valves for controlling said ports operated by theoscillation of said bellows.

7. In a motor in combination, an oscillating bellows, a crank-shaftattached thereto and driven thereby, a vacuum chamber, said bellowscommunicating with said chamber through a port, and a valve controllingsaid port operated by the oscillation of said bellows.

8. In a motor in combination, a crankshaft, a bellows having the basethereof pivoted and the head connected with said crankshaft, a vacuumchamber connected with said bellows, and a valve controlling theconnection between said chamber and said bellows, mounted upon a stemwhich extends to a point where it contacts with and is actuated by thebase of said bellows as it swings upon its pivot.

9. In a motor in combination, a crank shaft and a bellows comprising arelatively fixed base, a movable head, connecting bel-,

lows-folds, a rod extending from said base through said head, and aconnecting rod between said head and said shaft and recessed to receivesaid first-mentioned rod.

10. In a motor in combination, a crankshaft, a recessed connecting rod,a bellowshead secured to said connecting rod, a pivoted bellows-base,bellows-folds connecting said head and said base, and a rod fixed tosaid base and extending into the recess in said connecting rod.

11. In a motor in combination, a crank shaft, a pivoted bellows having aport in a movable part thereof, a connecting rod extending between saidbellows and said crank shaft, and means for admitting and exhausting airto and from said bellows, said means including a valve disposed in thepath of said port so as to open and close the port as the bellows moveson its pivot.

12. A motor, comprising a vacuum chamber, a passage leading therefrom, apivotally mounted bellows-block connected with said passage, a rodmounted in the face of said block, another bellows-block, a rod recessedto receive said first-mentioned rod mounted in said last-mentionedblock, a crank-shaft connected with said lastmentioned rod, and meansfor admitting air to and exhausting it from said bellows.

18. In a motor in combination, bellows and means for exhausting air fromand admitting air to said bellows, guide means for the movablebellows-head comprising a rod fixed to the bellows-base and passingthrough the bellows-head, and another rod fixed to the head and recessedto receive said first-mentioned rod.

14:. In a motor in combination, a base, a movable head, a rod extendingfrom said base through said head, a recessed rod attached to said headand surrounding said first mentioned rod, a crank-shaft attached to saidrecessed rod, bellows-folds connecting said base and said head and meansoperable by the motion of said bellows for admitting air to andexhausting it from said bellows.

15. A motor comprising in combination a bellows, a pivotal mounting forsaid bellows, a vacuum chamber, a flexible connection between saidbellows and said chamber, a crank-shaft connected with said bellows,said bellows having a port leading to the atmosphere, and a port leadingto said chamber, a valve stem, and valves on said stem for controllingsaid ports.

16. A motor comprising in combination a vacuum chamber, a pivotallymounted bellows, a flexible connection between said bellows and saidchamber, openings being provided from said bellows to said vacuumchamber and to the atmosphere, and valves for controlling said openingsoperable by the oscillation of said bellows upon its pivot.

17. A motor comprising in combination a vacuum chamber, a bellowspivotally mounted above said chamber, a flexible connection between saidbellows and said chamber, a valve port being provided between saidchamber and said bellows, a valve port being provided also between saidbellows and the atmosphere (directly over said firstmentioned valveport), and valves for said ports mounted upon the same valve stem andoperated by the oscillation of said bellows.

18. A motor comprising in combination a vacuum chamber, a pivotallymounted bellows, ports being provided from said bellows to said chamberand to the atmosphere, and means operable by the oscillation of saidbellows for simultaneously opening one and closing the other of saidports.

19. A motor comprising in combination a vacuum chamber, a pivotallymounted bellows, a conduit connecting said bellows with said chambercomprising bellows-folds of suitable material, and means operable by theoscillation of said bellows for simultaneously opening said bellows tothe atmosphere and closing the passage between said bellows and saidchamber.

20. A motor comprising in combination a plurality of pivotally mountedbellows connected with a single crank-shaft, a vacuum chamber,independent ports being provided between said chamber and the respectivebellows, and also from said bellows to the atmosphere, and valvescontrolled by the oscillation of said bellows for controlling saidports.

In testimony whereof, I have hereunto set my hand, in the presence oftwo witnesses.

EUGENE T. TURNEY.

Witnesses:

WALTER M. BALLUFF, PAUL H. J OHNSTON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

